Note: this issue was already submitted via Word document as number # 10, on August 19, 2024.
As of 6/10, 2025, the COLLECTIONS facet in the tree is empty.

We would like it to show all pinned collections (see results of https://api.isic-archive.com/collections/?pinned=true query).
@danlamanna or @brianhelba -- can you add some info for @IharXB and Katerina here as to the endpoints they need to get the list of collection names and IDs, and about the syntax to be used in the actual search?